Step-by-step explanation:
An a quadratic equation,

If the quadratic has one solution,
then

So plug in 27 for c, and 3 for a




or

So our answer is 18 or -18
Answer:
A. 360
Step-by-step explanation:
360 total students / 40% population of girls = 144 are girls
Answer:
2/6 or 1/3
Step-by-step explanation:
There are two numbers who are equal or less than 2 its 1 and 2
And the total is 6 so its 2/6 which is 1/3
Sorry if this is late
76÷4= ; x=19, you divide 76 by 4 because if he is 1/4 then it would be a group of one of the 4's, thus saying ehen you divide 76 by 4, it equals 19, so he is 19 years old, you could also do 19×4 and 22×4 to see which equals 76.